Alert archive / Tennessee / Polk County
Weather alerts in Polk County, Tennessee, 2014
133 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Polk County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 133
- Warnings
- 28
- Watches
- 20
- Advisories
- 43
- Busiest month
- June27 alerts
- Busiest day
- August 20, 20149 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering Polk County in 2014 had a tornado report inside them.
Polk County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 17 | 13 | 24% | 5 | 100% | 14 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Morristown, TN: tornado warnings | 29 | 3 | 90% | 9 | 78% | 22 min |
| NWS Morristown, TN: severe thunderstorm warnings | 191 | 149 | 22% | 291 | 79% | 23 min |
| NWS Morristown, TN: flash flood warnings | 10 | 5 | 50% | 10 | 80% | 44 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 5, 5:15 AM EST | Wind Chill Watch | MRX | 10 hr |
| Jan 5, 5:15 AM EST | Winter Weather Advisory | MRX | 37 hr |
| Jan 5, 3:12 PM EST | Wind Chill Warning | MRX | 45 hr |
| Jan 5, 3:12 PM EST | Wind Chill Advisory | MRX | 45 hr |
| Jan 5, 8:02 PM EST | Wind Advisory | MRX | 8 hr |
| Jan 14, 4:14 PM EST | Winter Weather Advisory | MRX | 23 hr |
| Jan 18, 3:20 PM EST | Winter Weather Advisory | MRX | 13 hr |
| Jan 22, 3:32 PM EST | Wind Chill Advisory | MRX | 43 hr |
| Jan 27, 3:26 AM EST | Wind Chill Advisory | MRX | 31 hr |
| Jan 28, 2:22 AM EST | Winter Weather Advisory | MRX | 20 hr |
| Feb 10, 3:44 AM EST | Winter Storm Watch | MRX | 36 hr |
| Feb 10, 4:00 PM EST | Winter Weather Advisory | MRX | 19 hr |
| Feb 11, 3:31 PM EST | Winter Storm Warning | MRX | 48 hr |
| Feb 12, 3:20 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 20, 4:34 AM EST | Wind Advisory | MRX | 23 hr |
| Feb 20, 10:29 PM EST | Mesoscale Discussion | SPC | 61 min |
| Feb 20, 10:47 PM EST | Tornado Watch | SPC | 6 hr |
| Feb 21, 1:58 AM EST | Severe Thunderstorm Warning | MRX | 47 min |
| Mar 11, 4:13 PM EDT | Wind Advisory | MRX | 31 hr |
| Mar 22, 3:34 PM EDT | Freeze Watch | MRX | 13 hr |
| Mar 23, 4:20 AM EDT | Freeze Warning | MRX | 29 hr |
| Mar 24, 3:10 PM EDT | Freeze Watch | MRX | 13 hr |
| Mar 25, 4:05 AM EDT | Freeze Warning | MRX | 30 hr |
| Mar 26, 3:23 AM EDT | Freeze Warning | MRX | 30 hr |
| Mar 29, 3:05 PM EDT | Wind Advisory | MRX | 16 hr |
| Mar 30, 2:45 PM EDT | Frost Advisory | MRX | 19 hr |
| Apr 4, 8:00 AM EDT | Mesoscale Discussion | SPC | 90 min |
| Apr 4, 8:04 AM EDT | Special Weather Statement | MRX | 41 min |
| Apr 7, 5:27 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Apr 7, 8:24 AM EDT | Areal Flood Advisory | MRX | 111 min |
| Apr 14, 4:13 AM EDT | Freeze Watch | MRX | 25 hr |
| Apr 15, 4:46 AM EDT | Freeze Warning | MRX | 29 hr |
| Apr 15, 4:46 AM EDT | Wind Advisory | MRX | 16 hr |
| Apr 16, 3:36 AM EDT | Frost Advisory | MRX | 29 hr |
| Apr 27, 3:25 PM EDT | Flood Watch | MRX | 66 hr |
| Apr 28, 2:33 PM EDT | Tornado Watch | SPC | 5 hr |
| Apr 28, 3:34 PM EDT | Wind Advisory | MRX | 16 hr |
| Apr 28, 6:37 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 28, 10:19 PM EDT | Severe Thunderstorm Warning | MRX | 56 min |
| Apr 28, 10:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Apr 29, 12:20 AM EDT | Mesoscale Discussion | SPC | 85 min |
| Apr 29, 12:30 AM EDT | Tornado Watch | SPC | 7 hr |
| Apr 29, 4:39 AM EDT | Special Weather Statement | MRX | 51 min |
| May 11, 4:47 AM EDT | Dense Fog Advisory | MRX | 4 hr |
| May 14, 3:41 PM EDT | Flash Flood Watch | MRX | 12 hr |
| May 14, 8:49 PM EDT | Special Weather Statement | MRX | 41 min |
| May 16, 1:53 PM EDT | Special Weather Statement | MRX | 37 min |
| May 19, 3:32 AM EDT | Dense Fog Advisory | MRX | 6 hr |
| May 22, 7:47 PM EDT | Mesoscale Discussion | SPC | 88 min |
| May 23, 5:03 PM EDT | Special Weather Statement | MRX | 27 min |
| May 23, 5:44 PM EDT | Severe Thunderstorm Warning | MRX | 31 min |
| May 25, 11:46 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 25, 4:53 PM EDT | Special Weather Statement | MRX | 37 min |
| May 26, 6:01 PM EDT | Special Weather Statement | MRX | 59 min |
| May 27, 4:13 PM EDT | Special Weather Statement | MRX | 47 min |
| May 30, 5:29 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jun 5, 3:27 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 5, 7:42 PM EDT | Special Weather Statement | MRX | 48 min |
| Jun 9, 9:57 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 10, 12:59 AM EDT | Special Weather Statement | MRX | 46 min |
| Jun 10, 1:51 AM EDT | Special Weather Statement | MRX | 54 min |
| Jun 10, 2:57 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 10, 3:24 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 10, 4:13 PM EDT | Severe Thunderstorm Warning | MRX | 47 min |
| Jun 10, 4:52 PM EDT | Severe Thunderstorm Warning | MRX | 53 min |
| Jun 10, 4:57 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Jun 12, 8:31 AM EDT | Areal Flood Advisory | MRX | 119 min |
| Jun 13, 3:17 PM EDT | Areal Flood Advisory | MRX | 118 min |
| Jun 15, 4:22 PM EDT | Special Weather Statement | MRX | 53 min |
| Jun 15, 4:46 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jun 18, 4:15 PM EDT | Special Weather Statement | MRX | 45 min |
| Jun 18, 4:43 PM EDT | Severe Thunderstorm Warning | MRX | 47 min |
| Jun 19, 4:06 PM EDT | Special Weather Statement | MRX | 39 min |
| Jun 19, 4:15 PM EDT | Severe Thunderstorm Warning | MRX | 45 min |
| Jun 21, 1:23 PM EDT | Special Weather Statement | MRX | 52 min |
| Jun 23, 1:35 PM EDT | Special Weather Statement | MRX | 40 min |
| Jun 23, 2:08 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jun 23, 6:56 PM EDT | Areal Flood Advisory | MRX | 109 min |
| Jun 24, 6:09 PM EDT | Special Weather Statement | MRX | 36 min |
| Jun 30, 1:25 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jun 30, 5:12 AM EDT | Areal Flood Advisory | MRX | 2 hr |
| Jun 30, 7:16 AM EDT | Areal Flood Advisory | MRX | 119 min |
| Jun 30, 8:58 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 8, 4:58 PM EDT | Severe Thunderstorm Warning | MRX | 62 min |
| Jul 8, 5:59 PM EDT | Severe Thunderstorm Warning | MRX | 34 min |
| Jul 28, 12:32 AM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 28, 12:48 AM EDT | Special Weather Statement | MRX | 57 min |
| Jul 28, 1:33 AM EDT | Special Weather Statement | MRX | 87 min |
| Jul 28, 1:36 AM EDT | Severe Thunderstorm Warning | MRX | 39 min |
| Aug 1, 11:03 PM EDT | Areal Flood Advisory | MRX | 117 min |
| Aug 8, 11:05 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Aug 11, 10:09 PM EDT | Areal Flood Advisory | MRX | 2 hr |
| Aug 11, 11:27 PM EDT | Flash Flood Warning | MRX | 2 hr |
| Aug 20, 3:15 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Aug 20, 3:56 PM EDT | Severe Thunderstorm Warning | MRX | 49 min |
| Aug 20, 3:59 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 20, 4:41 PM EDT | Severe Thunderstorm Warning | MRX | 34 min |
| Aug 20, 4:52 PM EDT | Tornado Warning | MRX | 38 min |
| Aug 20, 5:22 PM EDT | Severe Thunderstorm Warning | MRX | 38 min |
| Aug 20, 5:44 PM EDT | Severe Thunderstorm Warning | MRX | 46 min |
| Aug 20, 5:58 PM EDT | Severe Thunderstorm Warning | MRX | 33 min |
| Aug 20, 6:32 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Aug 24, 6:06 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Aug 31, 2:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 31, 4:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 3, 5:52 AM EDT | Areal Flood Advisory | MRX | 113 min |
| Sep 21, 3:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Oct 4, 3:31 AM EDT | Freeze Watch | MRX | 12 hr |
| Oct 4, 3:01 PM EDT | Frost Advisory | MRX | 19 hr |
| Oct 4, 3:01 PM EDT | Freeze Warning | MRX | 19 hr |
| Oct 6, 8:11 PM EDT | Special Weather Statement | MRX | 49 min |
| Oct 8, 4:40 AM EDT | Severe Thunderstorm Warning | MRX | 65 min |
| Oct 8, 5:45 AM EDT | Special Weather Statement | MRX | 15 min |
| Oct 9, 3:44 PM EDT | Special Weather Statement | MRX | 46 min |
| Oct 9, 4:21 PM EDT | Special Weather Statement | MRX | 39 min |
| Oct 10, 2:19 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Oct 12, 9:45 PM EDT | Special Weather Statement | MRX | 60 min |
| Oct 13, 3:31 PM EDT | Wind Advisory | MRX | 29 hr |
| Oct 13, 3:51 PM EDT | Flood Watch | MRX | 24 hr |
| Oct 13, 9:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 13, 11:44 PM EDT | Tornado Watch | SPC | 6 hr |
| Oct 14, 3:07 AM EDT | Mesoscale Discussion | SPC | 83 min |
| Oct 14, 1:41 PM EDT | Areal Flood Advisory | MRX | 2 hr |
| Oct 19, 2:34 PM EDT | Frost Advisory | MRX | 18 hr |
| Oct 22, 3:21 AM EDT | Frost Advisory | MRX | 30 hr |
| Oct 30, 9:20 PM EDT | Winter Weather Advisory | MRX | 40 hr |
| Oct 31, 3:24 AM EDT | Freeze Watch | MRX | 22 hr |
| Nov 1, 1:36 AM EDT | Freeze Warning | MRX | 32 hr |
| Nov 22, 3:58 AM EST | High Wind Watch | MRX | 24 hr |
| Nov 23, 3:48 AM EST | High Wind Warning | MRX | 24 hr |
| Nov 24, 4:10 AM EST | Wind Advisory | MRX | 12 hr |
| Dec 23, 2:25 PM EST | Severe Thunderstorm Warning | MRX | 50 min |
| Dec 23, 9:07 PM EST | Areal Flood Advisory | MRX | 3 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20132015
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.